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8657J Pi/4 DQPSK Signal Generator for PHS

Product Status: Obsolete | View Service Options
This product is no longer available

A replacement for this product is available:

Key Features & Specifications

  • 100 kHz to 1030 MHz analog range
  • Standard AM and FM modulation
  • Pi/4 DQPSK modulation for PHS
  • Pulse modulation
  • <3.2% error vector magnitude
  • Digital RF frequency bands for PHS


The Keysight 8657J signal generator adds Pi/4 DQPSK digital modulation capability to conventional AM, FM, and pulse modulation formats. The Keysight 8657J builds on the excellent performance of the Keysight 8657 signal generator by adding digital modulation capability. The Keysight 8657J tests radios for Japanese digital cordless telephone systems, called Personal Handiphone System (PHS).